Banksy’s website updated a few minutes ago to announce Better Out Than In, “an artists residency on the streets of New York.” The ongoing event is accompanied by a phone number (800) 656-4271 that you can call with a specific code correlating to each artwork.

There is a 22-foot-long, 200-ton steel monster under Manhattan. Dead, resting deep somewhere under Grand Central Station and Park Avenue, this machine and her twin brother excavated the massive tunnels that you can see here, one of the largest public transportation works of our time.

Here’s an impressive new look at the amazing tunnels and caverns of the East Side Access, an extension of the Long Island Rail Road. Read more

Here’s a link to an animated map that shows the growth of the NYC subway over time, from Appealing Industries Appealing Industries (via Spacing Toronto). Unfortunately there’s no time legend, which would have seemed like a no-brainer to include. Still a very interesting animation, though. And if you want to see about eleventy billion more maps from throughout the history of the NYC subway, go here.